/*大图片*/
#banner .pic {
	width: 738px;
	height: 430px;
	position: relative;
}

#banner .pic ul li {
	list-style: none;
	width: 738px;
	height: 430px;
	position: absolute;
	left: 0;
	top: 0;
	display: none;
}

#banner .pic ul li.first {
	display: block;
}

/*按钮*/
#banner .but {
	width: 104px;
	height: 10px;
	position: absolute;
	bottom: 10px;
	left: 50%;
	margin-left: -52px;
}

#banner .but ul li {
	list-style: none;
	width: 10px;
	height: 10px;
	float: left;
	margin: 0 5px;
	background-color: white;
	border-radius: 50%;
}

#banner .but ul li.first {
	background-color: red;
}
/*图片导航*/
#banner .picnav {
	width: 625px;
	height: 86px;
	background-color: rgba(255, 255, 255, 0.8);
	position: absolute;
	bottom: -86px;
	left: 50%;
	margin-left: -312px;
}

#banner .picnav ul li {
	list-style: none;
	width: 115px;
	height: 75px;
	float: left;
	margin: 5px;
}

#banner .picnav ul li.first {
	border-bottom: 4px solid red;
}

#banner .picnav ul li img {
	width: 115px;
	height: 70px;
}

.btn_b {
	border: none;
	padding: 5px 20px;
	text-align: center;
	text-decoration: none;
	display: inline-block;
	font-size: 16px;
	margin: 4px 2px;
	cursor: pointer;
}

.btn_error {
	background-color: #f44336;
	color: black;
}

.btn_primary {
	background-color: #e7e7e7;
	/* background-color: #008CBA;  blue
		background-color: #f44336; 红色
		background-color: #555555; black
		background-color: #4CAF50; green */
	color: black;
}